Box-fastener



(Model.)

0. C. MARTIN. BOX FASTENER- No. 484,373. Patented Oct. 11, 1892.

G r q WITNESSES: lNl/E TOP &2,

I %M g l ATTORNEY.

UNITED STATEs PATENT OFFICE.

CHARLES C. MARTIN, OF DENVER, COLORADO.

BOX-FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 484,373, dated October 11, 1892.

Application filed March 15, 1392. Serial No. 425,073. (ModeL) 2'0 all whom it may concern:

Be it known that I, CHARLES C. MARTIN, a citizen of the United States of America, residing-at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Box-Lid Fasteners; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in fastenings specially designed for use in connection with box-lids, but which may be employed in other relations.

The object of the invention is to provide a device of the class stated which shall be of simple and economical construction, easily applied, reliable, durable, and efficient in use.

To these ends the invention consists of the features hereinafter described and claimed.

The invention Will be considered in this specification as applied to egg-case lids, since this style of boX is considered the best type to which the fastener may be successfully and profitably attached.

My improved fastening consists of acoilspring having all its convolutions lying in the same plane and so secured to the ends of the box or the lid thereof that it may be rotated about its center, the pivot being passed through the innermost coil. The coils are sufficiently separated. to permit the entrance therebetween of a pin or screw made fast to the body or lid of the box, as the case may be, as the spring is turned.

When used in connection with the ordinary eg -case, the device should be constructed of spring-steel .and made sufficiently strong to hold the lid securely in place against the possibility of its becoming loose during transportation.

Egg-case lids have no hinges. Hence two of the fastening-springs are employed, one being located at each end. If the lid is hinged at one end, as in the case of many otherboxes or cases, only one spring need be employed.

The device will perhaps be better understood by reference to the accompanying draw ings, in which is illustrated an embodiment of the invention.

Figure 1 is an end view of a case partially broken away, showing the fastener in place. Fig. 2 is a vertical section taken through the end of the case on line x m, Fig. 1. Fig. 3 is a top view of the case on a small scale, showing the two fasteners in place. Fig. 4 is a detail view of the fastening-spring.

Similar reference characters indicating corresponding parts or elements, let the numeral 5 designate the box-lid, and 6 the depending end flanges; 7, the ends of the box; 8, cleats thereacross of the same thickness as the flanges 6, and 9 the coil-spring fastenings pivoted to the cleats by screws 10 and adapted to engage a screw or pin 12, made fast to flanges 6.

From what has heretofore been stated the manner of using the device will be fully un derstood.

Having thus described my invention,what I claim is- A box-lid fastener consisting of a coil-spring pivoted to one part of the box, in combination with a rigid pin or lug secured to the other part and adapted to engage the spring, substantially as described.

In testimony whereof I affix mysignature in presence of two Witnesses.

CHARLES C. MARTIN.

Witnesses:

WM. McCoNNELL, J. H. IVIONTGOMERY. 

